Home / 20,347.02-28,075.68-11,850.54

Finding the Fourth Proportional to 20,347.02, 28,075.68 and 11,850.54

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Solution

The fourth proportional to 20,347.02, 28,075.68 and 11,850.54 is: 16,351.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,347.02 : 28,075.68 = 11,850.54 : x
  2. Step 2: Convert to fraction form
    20,347.02/28,075.68 = 11,850.54/x
  3. Step 3: Cross multiply
    20,347.02x = 28,075.68 × 11,850.54
  4. Step 4: Simplify right side
    20,347.02x = 332,711,968.87
  5. Step 5: Solve for x
    x = 332,711,968.87/20,347.02
  6. Step 6: Final answer
    x = 16,351.88

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.